Heat storage and steam generation device of fused salt energy storage boiler

Abstract

The invention discloses a heat storage and steam generation device of a fused salt energy storage boiler, and belongs to the technical field of fused salt energy storage. A supporting base is arranged at the bottom of the fused salt boiler, and evaporation equipment is arranged on a mounting boss; the evaporation equipment is communicated with the low-temperature molten salt bin through a discharge pipe, and the low-temperature molten salt bin is communicated with the molten salt furnace through a return pipe; a hot air cavity is formed in the top of the molten salt furnace, a vertical support is arranged on the outer wall of the molten salt furnace, a horizontal support is arranged at the top of the vertical support, and a hanging bracket located on the inner side of the vertical support is further arranged at the bottom of the horizontal support. A connecting rod is arranged between the horizontal brackets; a swing arm is movably arranged on the inner side of the vertical support, a sleeve is slidably arranged on the connecting rod, and a vertical sliding rod is arranged at the bottom of the sleeve. Inorganic salt can be heated through the molten salt furnace, high-temperature molten salt enters the evaporation equipment through the high-temperature pipe for power generation, the molten salt completing heat exchange can return to the molten salt furnace again through the backflow pipe, the structure is stable and effective, and the machining efficiency and practicability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of molten salt energy storage, and in particular to a heat storage and steam generating device of a molten salt energy storage boiler. Background Art

[0002] Molten salt refers to liquid salt in a molten state. The molten salt used in engineering usually refers to inorganic salt melt. Molten salt has the characteristics of high boiling point, low viscosity, low vapor pressure and high volume heat, and is an excellent heat transfer and heat storage medium. Molten salt energy storage technology uses the temperature difference of molten salt during the heating and cooling process to achieve thermal energy storage. Molten salt has a series of advantages such as high operating temperature, wide operating temperature range, strong heat transfer capacity, low system pressure, and good economy. It has become the first choice for heat transfer and heat storage medium in solar thermal power stations. Molten salt energy storage technology is not only used in conjunction with solar thermal. Based on its own excellent characteristics, molten salt energy storage can be applied to a variety of scenarios. Such as thermal power plant energy storage transformation, industrial waste heat energy storage, valley power industrial heating, photovoltaic power abandonment energy storage, wind power abandonment energy storage, transportation energy storage and many other fields.

[0003] The patent application with publication number CN118008509A discloses a molten salt energy storage heating and power generation system, including a low-temperature molten salt tank, a first high-temperature molten salt tank, a second high-temperature molten salt tank, and also includes: a first heat exchanger, a second heat exchanger, a third heat exchanger and a fourth heat exchanger. When the molten salt energy storage heating and power generation system is peak-shaving and frequency-modulating, the gas turbine body and the steam turbine body are used to generate electricity for peak-shaving, and at the same time, the steam turbine body can also be used to extract steam to generate external heat. When the system is not started for peak-shaving and frequency-modulating, the heating steam is generated by heat exchange between the high-temperature molten salt and the feed water in the fourth heat exchanger. During the shutdown and maintenance of the gas turbine body, the third heat exchanger works to replace the heat energy in the molten salt into the medium water on its low-temperature side through the third heat exchanger, so that it forms high-temperature and high-pressure steam to drive the steam turbine body to operate and generate electricity externally. This invention realizes continuous and stable external heat supply while also realizing peak-shaving and frequency-modulating operation when the gas turbine body is shut down for maintenance.

[0004] The processing efficiency of the molten salt boiler in the above-disclosed molten salt energy storage heating and power generation system is low, and the molten salt will produce a small amount of agglomerates during repeated heating and cooling, and these agglomerates will block the pipes after long-term use in the furnace. In addition, the degree of freedom of the furnace in the prior art is general, the degree of automation is low, it is time-consuming and labor-intensive, and there is a lack of an efficient stirring and mixing structure. Therefore, in view of the above status quo, it is urgent to develop a heat storage and steam generation device for the molten salt energy storage boiler to overcome the shortcomings in current practical applications. Summary of the invention

[0005] The purpose of the present invention is to solve the problems that the processing efficiency of the molten salt boiler in the existing molten salt energy storage heating and power generation system is low, and the molten salt will produce a small amount of agglomerates during repeated heating and cooling, and these agglomerates will block the pipeline after long-term use in the furnace. In addition, the furnace in the prior art has a general degree of freedom, a low degree of automation, is time-consuming and labor-intensive, and lacks an efficient stirring and mixing structure. A heat storage and steam generation device for a molten salt energy storage boiler is provided.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a heat storage and steam generation device for a molten salt energy storage boiler, comprising an evaporation device, a low-temperature molten salt bin and a molten salt furnace, wherein a support base is provided at the bottom of the molten salt furnace, a mounting boss is provided in the middle of the support base, and the evaporation device is provided on the mounting boss; the evaporation device is connected with the low-temperature molten salt bin through a discharge pipe, and the low-temperature molten salt bin is connected with the molten salt furnace through a reflux pipe; a hot air cavity is provided at the top of the molten salt furnace, a vertical bracket is provided on the outer wall of the molten salt furnace, a horizontal bracket is provided on the top of the vertical bracket, and a bottom of the horizontal bracket is provided on the bottom of the horizontal bracket. A hanger is also fixedly provided on the inner side of the vertical bracket; a connecting rod is horizontally provided between the horizontal brackets; a swing arm is movably provided on the inner side of the vertical bracket, a sleeve is slidably provided on the connecting rod, and a vertical sliding rod is provided at the bottom of the sleeve; a moving seat is slidably provided on the sliding rod, and a linkage pendulum block is movably provided on the outer side of the hanger, and the inner side of the linkage pendulum block is movably connected to the swing arm; the inner side of the moving seat is movably connected to the linkage pendulum block through a swing column 2; when the swing arm swings back and forth, the moving seat reciprocates up and down along the sliding rod, and the sleeve also reciprocates along the connecting rod.

[0007] As a further solution of the present invention: an upper sliding cavity and a lower sliding cavity are provided on the swing arm, an upper sliding block is slidably arranged in the upper sliding cavity, a lower sliding block is slidably arranged in the lower sliding cavity, a second eccentric shaft is rotatably arranged on the inner side of the linkage swing block, the linkage swing block is movably mounted on the hanger through the second eccentric shaft, and the end of the second eccentric shaft is movably connected to the upper sliding block.

[0008] As a further solution of the present invention: a swing column 1 is provided at the bottom of the swing arm, and the swing arm is movably mounted on the inner side of the vertical bracket through the swing column 1; a motor is also provided on the outer side of the vertical bracket, and the output end of the motor is connected to a first eccentric shaft, and the end of the first eccentric shaft is movably connected to the lower slider.

[0009] As a further solution of the present invention: a cantilever is provided on the inner side of the moving seat, a lifting rod is provided at the bottom of the cantilever, a cavity is opened inside the lifting rod, a threaded portion is provided in the cavity, a ball screw is threadedly connected to the cavity, and a stirring fan is provided at the bottom of the ball screw; a return spring is provided in the cavity, the top of the ball screw abuts against the return spring, and a protrusion is provided at the bottom of the ball screw.

[0010] As a further solution of the present invention: a linkage seat is also arranged on the top of the linkage pendulum block, and the linkage seat includes two parts, a horizontal part and a vertical part. The moving seat is movably connected to the vertical part through the second swing column, and the linkage seat is movably connected to the linkage pendulum block through the horizontal part.

[0011] As a further solution of the present invention: a guide hole is opened on the inner wall of the molten salt furnace, and a scraper matching with the guide hole is arranged at the bottom of the linkage swing block.

[0012] As a further solution of the present invention: a collecting cover connected to the guide hole is arranged on the outer wall of the molten salt furnace, a high-temperature tube penetrating the vertical bracket is arranged at the bottom of the collecting cover, the bottom of the high-temperature tube is connected to the evaporation equipment, and a control valve is also arranged in the middle of the high-temperature tube.

[0013] As a further solution of the present invention: symmetrical vertical plates are arranged on the outer wall of the molten salt furnace, the vertical plates are located on both sides of the vertical bracket, a shielding cover is arranged outside the hot gas cavity, and a heat preservation cavity is formed between the shielding cover and the vertical plates.

[0014] As a further solution of the present invention: a reflux pump is installed on the reflux pipe.

[0015] The present invention provides a heat storage and steam generation device for a molten salt energy storage boiler by improving the present invention. Compared with the prior art, the present invention has the following beneficial effects: The present invention can heat and melt the inorganic salt melt through the molten salt furnace, and the high-temperature molten salt enters the evaporation equipment through the high-temperature pipe for power generation and storage, and the molten salt that completes the heat exchange will return to the molten salt furnace through the reflux pipe for heating. Driven by the motor and the lower slider, the swing arm can swing back and forth relative to the vertical bracket. Since the upper slider and the second eccentric shaft are movably connected, the linkage swing block will also swing back and forth, thereby driving the scraper at the bottom to scrape the guide hole to avoid a small amount of inorganic salt agglomeration after long-term use. When the linkage swing block swings back and forth, the moving seat reciprocates up and down along the slide rod while the sleeve also reciprocates along the connecting rod. Under the cooperation of the ball screw and the threaded part, when the lifting rod moves downward, the protrusion will squeeze the bottom of the molten salt furnace, and at this time, the stirring fan will rotate and stir the molten salt, thereby improving the melting effect. The structure is stable and effective, and improves the heat storage of the molten salt energy storage boiler and the processing efficiency and practicality of the steam generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is a three-dimensional structural diagram of the molten salt furnace in the present invention; Figure 3 It is the internal structure diagram of the molten salt furnace in the present invention; Figure 4 It is a cross-sectional view of the molten salt furnace in the present invention Figure 1 ; Figure 5 It is a cross-sectional view of the molten salt furnace in the present invention Figure 2 ; Figure 6 It is the internal coordination diagram of the molten salt furnace in the present invention; Figure 7 It is a partial cross-sectional view of the stirring fan in the present invention.

[0017] Description of reference numerals: 1. Evaporation equipment; 101. Discharge pipe; 2. Low-temperature molten salt warehouse; 201. Reflux pipe; 202. Reflux pump; 3. Molten salt furnace; 301. Hot gas chamber; 302. Vertical bracket; 303. Horizontal bracket; 304. Connecting rod; 305. Swing arm; 306. Upper sliding chamber; 307. Lower sliding chamber; 308. Swing column 1; 309. Upper slider; 310. Lower slider; 311. Motor; 312. First eccentric shaft; 313. Hanger; 314. Linkage swing block; 315. Second eccentric shaft; 316. Mounting boss; 317. Linkage Moving seat; 318, horizontal part; 319, vertical part; 320, scraper; 321, guide hole; 322, sleeve; 323, slide rod; 324, moving seat; 325, swing column 2; 326, cantilever; 327, lifting rod; 328, cavity; 329, threaded part; 330, stirring fan; 331, ball screw; 332, raised part; 333, return spring; 334, collecting cover; 335, high-temperature pipe; 336, control valve; 337, vertical plate; 338, insulation chamber; 339, shielding cover; 340, supporting base. DETAILED DESCRIPTION

[0018] The following will be combined with the attached Figures 1 to 7 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The present invention provides a heat storage and steam generation device for a molten salt energy storage boiler by improving the Figure 1-Figure 7As shown, it includes an evaporation device 1, a low-temperature molten salt warehouse 2 and a molten salt furnace 3. A support base 340 is provided at the bottom of the molten salt furnace 3, a mounting boss 316 is provided in the middle of the support base 340, and the evaporation device 1 is arranged on the mounting boss 316; the evaporation device 1 is connected with the low-temperature molten salt warehouse 2 through a discharge pipe 101, and the low-temperature molten salt warehouse 2 is connected with the molten salt furnace 3 through a reflux pipe 201; a hot air cavity 301 is opened at the top of the molten salt furnace 3, a vertical bracket 302 is provided on the outer wall of the molten salt furnace 3, a horizontal bracket 303 is provided on the top of the vertical bracket 302, and a hanger 313 located on the inner side of the vertical bracket 302 is also fixedly provided at the bottom of the horizontal bracket 303; the horizontal bracket 3 03; a connecting rod 304 is horizontally arranged between the vertical bracket 302; a swing arm 305 is movably arranged on the inner side of the vertical bracket 302, a sleeve 322 is slidably arranged on the connecting rod 304, and a vertical sliding rod 323 is arranged at the bottom of the sleeve 322; a moving seat 324 is slidably arranged on the sliding rod 323, and a linkage pendulum block 314 is movably arranged on the outer side of the hanger 313, and the inner side of the linkage pendulum block 314 is movably connected with the swing arm 305; the inner side of the moving seat 324 is movably connected with the linkage pendulum block 314 through a swing column 325; when the swing arm 305 swings back and forth, the moving seat 324 reciprocates up and down along the sliding rod 323, and the sleeve 322 also reciprocates along the connecting rod 304.

[0020] In this embodiment: the heat storage and steam generation device of the molten salt energy storage boiler is mainly divided into three parts: evaporation equipment 1, low-temperature molten salt warehouse 2 and molten salt furnace 3. When the device is working, the molten salt furnace 3 is first heated by external equipment such as solar reflectors. After the inorganic salt melt is melted, the high-temperature molten salt enters the evaporation equipment 1 through the high-temperature pipe 335 for power generation and storage. The molten salt that completes the heat exchange will return to the molten salt furnace 3 through the reflux pipe 201 for heating.

[0021] When the motor 311 is started, driven by the first eccentric shaft 312, the lower slider 310 slides up and down along the lower sliding cavity 307, and the swing arm 305 also swings back and forth. When the swing arm 305 swings, the upper slider 309 slides up and down along the upper sliding cavity 306. Since the two sides of the second eccentric shaft 315 are respectively connected to the upper slider 309 and the linkage swing block 314, the linkage swing block 314 will also swing back and forth relative to the hanger 313. Since the moving seat 324 is movably connected to the linkage seat 317 through the swing column 325, when the linkage swing block 314 swings back and forth, the moving seat 324 reciprocates up and down along the slide rod 323, and the sleeve 322 also reciprocates along the connecting rod 304. At this time, the movement trajectory of the bottom lifting rod 327 can be regarded as a reciprocating cycle of rising, translating, and descending. When the lifting rod 327 moves downward, the protrusion 332 at the bottom of the ball screw 331 will squeeze the bottom of the molten salt furnace 3 and the return spring 333 will be compressed. At this time, with the cooperation of the ball screw 331 and the threaded portion 329, the stirring fan 330 will rotate and stir the molten salt. When the lifting rod 327 moves upward, the protrusion 332 will be separated from the bottom of the molten salt furnace 3, and the return spring 333 will return to its original state. At this time, with the cooperation of the ball screw 331 and the threaded portion 329, the stirring fan 330 will rotate again and stir the molten salt. When the linkage pendulum block 314 swings back and forth, the scraper 320 at the bottom can scrape the inner wall of the molten salt furnace 3 back and forth, thereby avoiding blockage after long-term use.

[0022] See attached Figure 5 -Attached Figure 6 An upper sliding cavity 306 and a lower sliding cavity 307 are provided on the swing arm 305. An upper sliding block 309 is slidably arranged in the upper sliding cavity 306, and a lower sliding block 310 is slidably arranged in the lower sliding cavity 307. A second eccentric shaft 315 is rotatably arranged on the inner side of the linkage swing block 314. The linkage swing block 314 is movably mounted on the hanger 313 through the second eccentric shaft 315, and the end of the second eccentric shaft 315 is movably connected to the upper sliding block 309.

[0023] In this embodiment, when the swing arm 305 swings back and forth, the upper slider 309 will slide back and forth along the upper sliding cavity 306. Since the two sides of the second eccentric shaft 315 are respectively connected to the upper slider 309 and the linkage swing block 314, the linkage swing block 314 will also swing back and forth relative to the hanger 313.

[0024] See attached Figure 3 and attached Figure 5A swing column 308 is provided at the bottom of the swing arm 305, and the swing arm 305 is movably installed on the inner side of the vertical bracket 302 through the swing column 308; a motor 311 is also provided on the outer side of the vertical bracket 302, and the output end of the motor 311 is connected to the first eccentric shaft 312, and the end of the first eccentric shaft 312 is movably connected to the lower slider 310.

[0025] In this embodiment, a motor 311 is provided to drive the swing arm 305 to swing back and forth. At this time, driven by the first eccentric shaft 312, the lower slider 310 slides back and forth along the lower cavity 307.

[0026] See attached Figure 4 -Attached Figure 6 A cantilever 326 is provided on the inner side of the moving seat 324, a lifting rod 327 is provided at the bottom of the cantilever 326, a cavity 328 is opened inside the lifting rod 327, a threaded portion 329 is provided in the cavity 328, a ball screw 331 is threadedly connected to the cavity 328, and a stirring fan 330 is provided at the bottom of the ball screw 331; a return spring 333 is provided in the cavity 328, the top of the ball screw 331 abuts against the return spring 333, and a protrusion 332 is provided at the bottom of the ball screw 331.

[0027] In this embodiment: Since the moving seat 324 is movably connected to the linkage seat 317 through the swing column 325, when the linkage swing block 314 swings back and forth, the moving seat 324 will reciprocate up and down along the slide bar 323, and the sleeve 322 will also reciprocate along the connecting rod 304. At this time, the movement trajectory of the bottom lifting rod 327 can be regarded as a reciprocating cycle of rising, translating, and descending. When the lifting rod 327 moves downward, the protrusion 332 at the bottom of the ball screw 331 will squeeze the bottom of the molten salt furnace 3 and the return spring 333 will be compressed. At this time, under the cooperation of the ball screw 331 and the threaded portion 329, the stirring fan 330 will rotate and stir the molten salt. When the lifting rod 327 moves upward, the protrusion 332 will be separated from the bottom of the molten salt furnace 3, and the return spring 333 will return to its original state. At this time, under the cooperation of the ball screw 331 and the threaded portion 329, the stirring fan 330 will rotate again and stir the molten salt.

[0028] See attached Figure 4 -Attached Figure 6 A linkage seat 317 is also provided on the top of the linkage pendulum block 314. The linkage seat 317 includes a horizontal portion 318 and a vertical portion 319. The moving seat 324 is movably connected to the vertical portion 319 through a swing column 325. The linkage seat 317 is connected to the linkage pendulum block 314 through the horizontal portion 318.

[0029] In this embodiment, in order to convert the linkage pendulum block 314 into the reciprocating motion of the moving seat 324, a linkage seat 317 is designed.

[0030] See attached Figure 3 and attached Figure 6 A guide hole 321 is provided on the inner wall of the molten salt furnace 3 , and a scraper 320 matching the guide hole 321 is provided at the bottom of the linkage swing block 314 .

[0031] In this embodiment: During the process of repeated heating and cooling of inorganic salts, a small amount of agglomeration will be generated. When the linkage pendulum block 314 swings back and forth, the scraper 320 at the bottom can scrape the inner wall of the molten salt furnace 3 back and forth, thereby avoiding blockage after long-term use. In order to ensure the fluidity of the molten salt during storage and circulation and prevent it from agglomerating, a stirring and scraping mechanism is designed in the system. This mechanism ensures that the molten salt continues to flow in the storage container through the swing arm 305 and the scraper 320, while avoiding scaling or blockage. The innovation of this system lies in the design of its stirring and scraping mechanism, which helps to improve the thermal efficiency and reliability of the system. By ensuring the fluidity of the molten salt and reducing the possibility of agglomeration, the system can maintain efficient thermal energy storage and conversion for a longer period of time.

[0032] See attached Figure 4 -Attached Figure 6 A collecting cover 334 connected to the guide hole 321 is arranged on the outer wall of the molten salt furnace 3, and a high-temperature pipe 335 penetrating the vertical bracket 302 is arranged at the bottom of the collecting cover 334. The bottom of the high-temperature pipe 335 is connected to the evaporation equipment 1, and a control valve 336 is also arranged in the middle of the high-temperature pipe 335.

[0033] In this embodiment, a control valve 336 is provided to further control the opening and closing of the high temperature pipe 335. After heating, the molten salt enters the collecting cover 334 through the guide hole 321, and further enters the evaporation device 1 through the high temperature pipe 335 to generate electricity.

[0034] See attached Figure 2 -Attached Figure 3 Symmetrical vertical plates 337 are arranged on the outer wall of the molten salt furnace 3 , and the vertical plates 337 are located on both sides of the vertical support 302 . A shielding cover 339 is arranged outside the hot gas cavity 301 , and a heat preservation cavity 338 is formed between the shielding cover 339 and the vertical plates 337 .

[0035] In this embodiment, a large amount of hot air is generated during the heating of the inorganic salt. In order to make full use of the hot air and avoid the heat from escaping in vain, a hot air cavity 301 is provided on the top of the molten salt furnace 3. The hot air generated by the heating will enter the heat preservation cavity 338 to keep the high temperature pipe 335 warm and preheat it, thereby minimizing the energy loss.

[0036] See attached Figure 1 A reflux pump 202 is installed on the reflux pipe 201.

[0037] In this embodiment: since the molten salt furnace 3 is located on the support base 340, a reflux pump 202 is designed to ensure that the low-temperature molten salt flows back to the molten salt furnace 3 for circulation heating.

[0038] Working principle of the present invention: When the device is working, the molten salt furnace 3 is first heated by external equipment, such as solar reflectors and other equipment. After the inorganic salt melt is melted, the high-temperature molten salt enters the evaporation device 1 through the high-temperature pipe 335 for power generation and storage. The molten salt that completes the heat exchange will return to the molten salt furnace 3 through the reflux pipe 201 for heating. When the motor 311 is started, at this time, driven by the first eccentric shaft 312, the lower slider 310 slides back and forth along the lower sliding cavity 307, and the swing arm 305 also swings back and forth left and right. When the swing arm 305 swings, the upper slider 309 slides back and forth along the upper sliding cavity 306. Since the two sides of the second eccentric shaft 315 are respectively connected to the upper slider 309 and the linkage pendulum block 314, the linkage pendulum block 314 will also swing back and forth relative to the hanger 313 at this time. Since the moving seat 324 is movably connected to the linkage seat 317 through the swing column 325, when the linkage swing block 314 swings back and forth, the moving seat 324 will reciprocate up and down along the slide bar 323, while the sleeve 322 will also reciprocate along the connecting rod 304. At this time, the motion trajectory of the bottom lifting rod 327 can be regarded as a reciprocating cycle of rising, translating, and descending. When the lifting rod 327 moves downward, the protrusion 332 at the bottom of the ball screw 331 will squeeze the bottom of the molten salt furnace 3 and the return spring 333 will be compressed. At this time, with the cooperation of the ball screw 331 and the threaded portion 329, the stirring fan 330 will rotate and stir the molten salt. When the lifting rod 327 moves upward, the protrusion 332 will be separated from the bottom of the molten salt furnace 3, and the return spring 333 will return to its original state. At this time, with the cooperation of the ball screw 331 and the threaded portion 329, the stirring fan 330 will rotate again and stir the molten salt. When the linkage swing block 314 swings back and forth, the scraper 320 at the bottom can scrape the inner wall of the molten salt furnace 3 back and forth, thereby avoiding blockage after long-term use.

[0039] The present invention can heat and melt the inorganic salt melt through the molten salt furnace 3, and the high-temperature molten salt enters the evaporation device 1 through the high-temperature pipe 335 for power generation and storage. The molten salt that completes the heat exchange will return to the molten salt furnace 3 through the reflux pipe 201 for heating. Driven by the motor 311 and the lower slider 310, the swing arm 305 can swing back and forth relative to the vertical bracket 302. Since the upper slider 309 and the second eccentric shaft 315 are movably connected, the linkage swing block 314 will also swing back and forth, thereby driving the scraper 320 at the bottom to scrape the guide hole 321 to avoid a small amount of inorganic salt agglomeration and clogging it after long-term use. When the linkage swing block 314 swings back and forth, the moving seat 324 reciprocates up and down along the slide rod 323, and the sleeve 322 also reciprocates along the connecting rod 304. With the cooperation of the ball screw 331 and the threaded portion 329, when the lifting rod 327 moves downward, the protrusion 332 will squeeze the bottom of the molten salt furnace 3, and the stirring fan 330 will rotate and stir the molten salt, thereby improving the melting effect. This structure is stable and effective, and improves the heat storage of the molten salt energy storage boiler and the processing efficiency and practicality of the steam generation device.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A heat storage and steam generation device for a molten salt energy storage boiler, comprising an evaporation device (1), a low-temperature molten salt bin (2) and a molten salt furnace (3), characterized in that: A support base (340) is provided at the bottom of the molten salt furnace (3), a mounting boss (316) is provided in the middle of the support base (340), and the evaporation device (1) is arranged on the mounting boss (316); the evaporation device (1) is connected to the low-temperature molten salt bin (2) via a discharge pipe (101), and the low-temperature molten salt bin (2) is connected to the molten salt furnace (3) via a reflux pipe (201); The top of the molten salt furnace (3) is provided with a hot air cavity (301); a vertical support (302) is provided on the outer wall of the molten salt furnace (3); a horizontal support (303) is provided on the top of the vertical support (302); a hanger (313) located inside the vertical support (302) is fixedly provided at the bottom of the horizontal support (303); a connecting rod (304) is horizontally provided between the horizontal supports (303); a swing arm (305) is movably provided inside the vertical support (302); a sleeve (322) is slidably provided on the connecting rod (304); the bottom of the sleeve (322) is fixedly provided with a hanging rod (313) located inside the vertical support (302); A vertical sliding rod (323) is provided at the top; a moving seat (324) is slidably provided on the sliding rod (323); a linkage swing block (314) is movably provided on the outer side of the hanger (313); the inner side of the linkage swing block (314) is movably connected to the swing arm (305); the inner side of the moving seat (324) is movably connected to the linkage swing block (314) via a second swing column (325); when the swing arm (305) swings back and forth, the moving seat (324) reciprocates up and down along the sliding rod (323), and the sleeve (322) also reciprocates along the connecting rod (304).

2. The heat storage and steam generation device of the molten salt energy storage boiler according to claim 1 is characterized in that: An upper sliding cavity (306) and a lower sliding cavity (307) are provided on the swing arm (305); an upper sliding block (309) is slidably arranged in the upper sliding cavity (306); a lower sliding block (310) is slidably arranged in the lower sliding cavity (307); a second eccentric shaft (315) is rotatably arranged inside the linkage swing block (314); the linkage swing block (314) is movably mounted on the hanger (313) via the second eccentric shaft (315); and a distal end of the second eccentric shaft (315) is movably connected to the upper sliding block (309).

3. The heat storage and steam generation device of the molten salt energy storage boiler according to claim 2 is characterized in that: A swing column (308) is provided at the bottom of the swing arm (305), and the swing arm (305) is movably mounted on the inner side of the vertical bracket (302) via the swing column (308); a motor (311) is also provided on the outer side of the vertical bracket (302), and an output end of the motor (311) is connected to a first eccentric shaft (312), and a terminal end of the first eccentric shaft (312) is movably connected to the lower slider (310).

4. The heat storage and steam generation device of the molten salt energy storage boiler according to any one of claims 1 to 3, characterized in that: A cantilever (326) is arranged on the inner side of the moving seat (324), a lifting rod (327) is arranged at the bottom of the cantilever (326), a cavity (328) is provided inside the lifting rod (327), a threaded portion (329) is arranged inside the cavity (328), a ball screw (331) is threadedly connected to the cavity (328), and a stirring fan (330) is arranged at the bottom of the ball screw (331); a return spring (333) is arranged in the cavity (328), the top of the ball screw (331) is in contact with the return spring (333), and a protrusion (332) is arranged at the bottom of the ball screw (331).

5. The heat storage and steam generation device of the molten salt energy storage boiler according to claim 1 is characterized in that: A linkage seat (317) is also provided on the top of the linkage swing block (314); the linkage seat (317) comprises a horizontal portion (318) and a vertical portion (319); the motion seat (324) is movably connected to the vertical portion (319) via the second swing column (325); and the linkage seat (317) is connected to the linkage swing block (314) via the horizontal portion (318).

6. The heat storage and steam generation device of the molten salt energy storage boiler according to any one of claims 1 to 3, characterized in that: A flow guide hole (321) is provided on the inner wall of the molten salt furnace (3), and a scraper (320) cooperating with the flow guide hole (321) is provided at the bottom of the linkage swing block (314).

7. The heat storage and steam generation device of the molten salt energy storage boiler according to claim 6, characterized in that: A collecting hood (334) connected to the flow guide hole (321) is arranged on the outer wall of the molten salt furnace (3); a high-temperature tube (335) penetrating the vertical support (302) is arranged at the bottom of the collecting hood (334); the bottom of the high-temperature tube (335) is connected to the evaporation device (1); and a control valve (336) is also arranged in the middle of the high-temperature tube (335).

8. The heat storage and steam generation device of the molten salt energy storage boiler according to any one of claims 1 to 3, characterized in that: Symmetrical vertical plates (337) are arranged on the outer wall of the molten salt furnace (3), and the vertical plates (337) are located on both sides of the vertical support (302). A shielding cover (339) is arranged outside the hot gas cavity (301), and a heat preservation cavity (338) is formed between the shielding cover (339) and the vertical plates (337).

9. The heat storage and steam generation device of the molten salt energy storage boiler according to any one of claims 1 to 3, characterized in that: A reflux pump (202) is installed on the reflux pipe (201).

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